Home / 142,284.58-196,344.19-77,740.94

Finding the Fourth Proportional to 142,284.58, 196,344.19 and 77,740.94

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Solution

The fourth proportional to 142,284.58, 196,344.19 and 77,740.94 is: 107,277.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,284.58 : 196,344.19 = 77,740.94 : x
  2. Step 2: Convert to fraction form
    142,284.58/196,344.19 = 77,740.94/x
  3. Step 3: Cross multiply
    142,284.58x = 196,344.19 × 77,740.94
  4. Step 4: Simplify right side
    142,284.58x = 15,263,981,894.14
  5. Step 5: Solve for x
    x = 15,263,981,894.14/142,284.58
  6. Step 6: Final answer
    x = 107,277.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.